12279904 has 48 divisors (see below), whose sum is σ = 29762208. Its totient is φ = 4856832.

The previous prime is 12279901. The next prime is 12279919. The reversal of 12279904 is 40997221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12279904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12279901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (620046).

Almost surely, 2^12279904 is an apocalyptic number.

12279904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12279904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14881104).

12279904 is an abundant number, since it is smaller than the sum of its proper divisors (17482304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12279904 is a wasteful number, since it uses less digits than its factorization.

12279904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 12279904 is about 3504.2693960368. The cubic root of 12279904 is about 230.7092410677.

The spelling of 12279904 in words is "twelve million, two hundred seventy-nine thousand, nine hundred four".